Caché Installation Guide - InterSystems Documentation

Installing Caché on UNIX and Linux
The following prompts only appear when installing a new instance; upgrade installations
keep the settings of the existing instance:
5. Install Caché with Unicode character support. The default is No, which installs the 8-bit
Caché.
InterSystems recommends 8-bit character support for locales based upon the Latin-1
character set, ISO 8859–1. Use Unicode if the base character set for your locale is not
Latin-1, or if you plan to have data from locales based upon a different character set. If
you use an 8-bit version of Caché, your data is not portable to 8-bit locales based on a
different character set.
CAUTION:
If you choose a Unicode installation, you cannot revert to an 8-bit version
without potential data loss. This is because an 8-bit version of Caché
cannot retrieve 16-bit character data from a database.
6. If you have a supported Web server installed, you are asked if you want to install the
CSP Gateway. Answer Yes to install the CSP Gateway after the Caché installation completes
and configure it for your Web server.
7. You next decide how restrictive you want the initial Caché security settings to be. Choose
from Minimal (1), Normal (2), and Locked Down (3). The default is Minimal; if you
choose this, the owner of the instance becomes root and the installation continues with
the next step.
If you enter 2 or 3, the script asks for additional information:
a. Owner of the instance — Enter a user name under which to run Caché. Caché creates
an account for this user.
b. Password for the entered user — Enter the Caché password for the user name twice
to confirm it.
For a detailed explanation of these settings, see the Initial Caché Security Settings section
of the “Preparing for Caché Advanced Security” appendix of this guide.
8. At this point in the installation, you are asked which group should be allowed to start and
stop Caché. Only one group can have these privileges and must be listed in the /etc/group
file. The options are:
• Enter the name or user ID number of an existing group; Caché verifies that the group
exists before proceeding.
• Enter 0 (zero) if you want the group to which the root user belongs to be the only
group to start and stop Caché.
36 Caché Installation Guide